car bucks when clutch is engaged

sounds like your clutch, clutch cyl, or master is going out. easy check I'm guessing that its hydro and not cable. go out and on the front of the tranny you will see your clutch slave unit it has a boot over the front of it use your finger and pop the boot off andd see if there is fluid inside the boot. if so this is bad. next if there is no fluid check the master inside the car underneath the dash the master comes through and attaches to the peddle, there is another boot but this one you dont need to pop off, see if its wet with break fluid. lastly there is a inspection pannel under the car attached to the trans between the motor should be a cupple 10 bolts. pop them out and see if there is a lot of clutch material in there. if so then clutch is out if not clutch still might be out. you might want to bleed the slave unit to see if there is air in the line but more then likely you have a clutch that is going out